The German-born police psychologist Cathrin Blake lost her balance after her husband disappeared without a trace and became an alcoholic. She lives with her adult son, who, like his father, has become a police officer. After she was able to overcome her addiction, she returned to her job, but no longer with the police.
On the site of a former children's home, the remains of ten babies and one adult are found. At the dead man's ring, a former psychologist recognizes her missing husband. But the police do not believe her and so she goes on her own tracks.
A student of Cathrin is murdered and draped like a doll found on the beach. The dead body corresponds to the imagination of one of Cathrin's patients. Kelly, however, suspects a friend of the dead.
The psychologist Cathrin Blake actually wants to withdraw from her work for the police. After a mysterious murder during the ghost parade of the "Samhain" harvest festival, however, Superintendent Kelly asks for her support. It's not just about the bloody act, but also about the disappearance of Holly Reid, the victim's friend.
The decades of struggle in Northern Ireland left deep wounds that have not yet healed. Criminal psychologist Cathrin Blake is faced with the delicate task of mediating in a perpetrator-victim conversation.
Abbie Campbell is in prison for murder, she stabbed her sleeping husband. The background to the brutal act was never clarified, Abbie had refused any statement at the time. Criminal psychologist Cathrin Blake has to prepare an expert opinion on the young woman.
Life seems to be kind to criminal psychologist Cathrin Blake: a tender love affair has developed from the acquaintance with the charming Matt. Professionally, however, Cathrin faces a tricky case: A year and a half ago, the renowned psychologist Helen Bell disappeared without a trace.
16-year-old student Moira McKendry, gifted, popular and fun-loving, is found dead after a school party. The fatal head injuries indicate a violent crime. Moira's best friend, the introverted Hanna, was apparently the last person to see Moira alive. But Hanna can't remember anymore.
Criminal psychologist Cathrin Blake is called to an emergency in the middle of the night: A young woman is threatening to throw herself to her death from a high-rise building. Cathrin knows the disturbed woman – Moon Flynn was in therapy with Cathrin a few years ago for a borderline disorder, but stopped it prematurely.
Cathrin Blake's neighbor Coner O'Neill is found dead. While Superintendent Sean Kelly assumes a natural death - Coner was over 80 - Cathrin is skeptical, as Coner had shown no signs of frailty so far. At the same time, another male body is found, also over 80. It turns out that both men had contact with the exclusive care home "Eden View". Bridget Howard is a very likeable, warm-hearted woman who is devoted to caring for elderly people without families. Kelly is taken in by the older lady's charm, but Cathrin is suspicious of appearances. Then there is another death at Eden View, and Kelly comes across several unsolved missing persons cases - also linked to Bridget's retirement home. Bridget has plausible explanations for all the incidents, but could it all just be a chain of unfortunate circumstances?
Criminal psychologist Cathrin Blake is confronted with a very personal case: Superintendent Sean Kelly, with whom Cathrin is also friends, has to deal with his family history when his nephew Eoin comes to Ireland from his native Australia.
